Vania



(No Model.)

E. E. GLAUSSEN. TRIANGULAR PAPER BAG.

No. 426,770. d Ap1u29, 1890.

5 invenior':

UNITED STATES PATENT OFFICE.

EDl/VARD E. CLAUSSEN, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE UNIONPAPER BAG MACHINE COMPANY, OF PHILADELPHIA, PENNSYL- VANIA.

TRIANGULAR PAPER BAG.

SPECIFICATION forming part of Letters Patent No. 426,770, dated April29, 1890. Application filed December 31, 1889- Serial No. 335,498. (Nomodel.)

To all whom it may concern:

Be it known that I, EDWARD E. CLAUSSEN, of the city and county ofHartford, State of Connecticut, have invented a new and usefulImprovement in Triangular Paper Bags, of

which the following is a true and exact description, reference being hadto the accompanying drawings, which form a part of this specification.

to My invention relates to paper bags of triangular form, my objectbeing to provide a bag of this kind which shall be simple inconstruction and readily made by machinery.

My invention will be best described and [5 understood in connection withthe drawings,

in which it is illustrated, and its novel features are hereinafterclearly pointed out in the claim.

In the drawings, Figure 1- is a perspective view of the tube formed inthe construction of my bag; Fig. 2, a plan view of said tube. Fig. 3 isa perspective View showing the final folding which completes the bag.Fig. 4 is a perspective View of the'bag opened out, and

Fig. 5 is an inside view of the bottom of the opened bag.

The first step in the manipulation'of the paper to form my new bagconsists in forming a tubular blank such as is shown in Figs.

0 1 and 2, said blank having two plain sides d and e, connected by thefold-line a, and one inwardly-tucked or bellows-folded side f f,connected with the sides d and c at the foldlines I) and b, and havingalso the central fold- 3 5 line a. The bottom of the blank is cut off ina diagonal line, as shown at 7.0, and in cuttinga projecting lap e isformed on one of the plain sides of the blank. The diagonal line 011which the bottom of the blank is cut must 0 run downward from thefold-line a to the fold-lines Z) Z), and on such an angle thereto aswill result in making the opened bag stand substantially vertical on itstriangular base for an equilateral bag. This angle I have found shouldbe about twenty to thirty dcgrees. The tubular blank having been formedas above described, the bag is completed by folding and pasting the lap6 down upon the opposite plain side, as shown in Fig. 3.

WVhen the bag formed as above described is opened, the plain sides d andc are bent on the lines g g, and the bellows-folded side f f opens outand at the same time bends on the lines h h and i, forming an-inwardtriangular fold bounded by said lines, which lies inside I of theinwardly-folded ends (1 and e of the plainsides (Z and 6. These foldsare shown in Figs. at and 5.

My improved bag can be easily made by slightly modifying the well-knownmachinery for forming square bellows-folded bags; and the leadingfeature of my invention lies in the diagonal cutting of the peculiarblank used, and which results in a triangular bag easily made,conveniently folded, and which, when opened, will stand upright on itstriangular bottom.

Havingnow described my invention, what I claim as new, and desire tosecure by Letters Patent, is

A triangular paper bag having two plain sides and one bellows-foldedside, and its bottom formed on an oblique line by folding and pastingdown a lap of one of its plain sides upon the other plain side,substantially as and for the purpose specified.

EDIVARD E. CLAUSSEN.

Witnesses:

HENRY S. BARBoUR, EDWARD S. WHITE.

